"Every comparative analysis I read, and I spend a lot of time on this, says how much better America did after crash than Europe because Obama and congress focused on putting America back to work," Clinton said.

Clinton urged the 7,500 spectators to vote for Obama.

"Vote for the man with the plan," Clinton said. "Don't let people buy a Siren song."

Most spectators said they were too disappointed about Obama's absence.

"The president was doing his job. He was being presidential today. I would have loved to have seen President Obama, but he was doing what he had to do today," Obama supporter Vickie Impoco said.

The president's portion of the rally was canceled because he said he wanted to return to Washington, D.C. to monitor Hurricane Sandy. The storm is swirling off the northeast coast of the U.S. and is expected to make landfall later in the day.

The president said a federal response to Sandy is already being coordinated.

“In times like this, one of the things Americans do is we pull together and we help out one another," Obama said.

Obama met with FEMA officials on Sunday and called Sandy a “serious and big storm.”

“Anything they need, we will be there. We’re going to cut through red tape,” Obama said. “We're not going to get bogged down with a lot of rules.”

Monday’s rally was Clinton’s second visit to Orlando this election.

The president arrived in Orlando on Sunday night. He delivered pizza to campaign volunteers and thanked them for their support.

Meanwhile, GOP vice presidential nominee Rep. Paul Ryan also canceled a speech at the Florida Tech Clemente Center in Melbourne. Vice President Joe Biden will also speak there Wednesday.

The storm has also affected Mitt Romney’s campaign schedule. The Republican presidential nominee canceled weekend rallies in Virginia and North Carolina.

“Our thoughts and prayers are with the people who will find themselves in harm's way,” Romney said.

The Romney campaign has also canceled all events for Monday night and Tuesday.

Early voting has already been canceled Monday in Maryland. Virginia, a battleground state, could see power outages lasting until Election Day.

Related: Clinton rallies for Obama in Orlando

Photos: Clinton speaks at rally in Orlando

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President Bill Clinton will speak at a rally on the University of Central Florida campus.